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Digital signage, directly on your smart TV

Smart TV signage.
No extra box.

Install the TV app. Pair your screen. Publish your first menu or promotion from one cloud workspace.

Compatible TVs only. Installation and setup time vary by model, firmware and network.

Create workspaceSee how it works

Digital signage, directly on your smart TV

Smart TV signage.
No extra box.

Install the TV app. Pair your screen. Publish your first menu or promotion from one cloud workspace.

Compatible TVs only. Installation and setup time vary by model, firmware and network.

Create workspaceSee how it works

▸ Why castv.ai

Everything a modern signage fleet needs.

  • Every OS, one fleet

    LG webOS, Samsung Tizen and SSSP, Android TV, Fire TV, macOS and Linux players, enrolled with claim codes and organised by validated sites, smart groups and network policies.

  • A studio for every screen

    Design landscape, portrait, square, ultra-wide or custom, or a whole video wall sized from its real panels. Start from templates or Unsplash and Pexels stock.

  • AI with a guided brief

    Answer a short brief (venue, audience, goal, tone) and the AI Generator drafts banners, backgrounds and playlists. AI-made content is held for review before it can play.

  • Campaigns in minutes

    Quick Campaign recipes turn a headline, a price and a photo into a scheduled campaign. Live data keeps menus, wait times and events current without a redesign.

  • Schedules with a fallback

    Overlaps follow one clear rule set in each site’s local time. Choose a fallback campaign for hours with no scheduled content.

  • Video walls that hold together

    Walls are sized from each panel’s resolution and bezels and calibrated per screen. Tiles share a start time and a leader keeps correcting drift while they play.

  • Cached playback for outages

    Previously verified cached media and a persisted schedule can keep playing during network loss. Live streams, uncached media and new cloud updates need a connection.

  • Screens that fix themselves

    A black, frozen or offline screen starts a fix by itself: reload, restart the player, clear the cache, re-send the content, reboot the TV — the lightest step first, checked by a fresh picture from the screen. You choose which fixes may run alone and which wait for a yes.

  • Playback records and captures

    Review tamper-evident playback records, available captures and an audit log. Accepting an installation still requires fresh per-screen evidence and physical observation.

  • Secure by design

    Every workspace is isolated in the database. Role-based access, two-step verification, passkeys and single sign-on, and support access only when you approve it.

  • Run it from your phone

    A phone app for the floor: see every screen, fix an offline TV, publish a banner from a template and start a campaign, without opening a laptop. Sign in with your face or fingerprint.

A closer look

▸ AI across the platform

AI in every step, not a bolt-on

Generate on-brand banners, backgrounds and playlists from a guided brief, then refine them in the editor: the assistant rewrites, translates, fixes readability and suggests layouts and durations, and reviews the design before you save.

  • A guided brief for 16 venue types, then AI drafts the campaign, its schedule and its targets
  • An assistant on every page that answers from your own fleet and starts the right fix
  • AI reviews available captures and telemetry to investigate playback; physical acceptance still needs fresh per-screen evidence and human observation
  • Self-healing decides the smallest fix that will work, inside the limits you set
  • Every AI action is logged with its sources, its cost and who approved it
An AI-generated drinks promotion: an iced drink splashing against a deep blue backdrop Generated with AI

▸ Video walls

Walls that stay in step

Build a wall from the panels you own. The canvas is sized from each panel’s resolution and bezels, colour and geometry are calibrated per screen, and every tile gets a shared start time while a leader keeps correcting drift.

  • Peer-to-peer sync on supported Samsung Tizen configurations; bounded, self-correcting sync on LG webOS
  • Multi-zone layouts composited into one video per screen
  • Banners play as a live overlay, so changing a price needs no re-render
  • A playlist of mixed videos is stitched into one video at the screen’s size and one frame rate, so cuts don’t flash black
Wall screen 1: an iced drink
Wall screen 2: a fashion shoot
Wall screen 3: a high-speed train
Wall screen 4: a runner

▸ Proof of play

Playback reports, signed and logged

A server-side, tamper-evident ledger records reported playback, where and when, alongside available screen captures and an audit trail for billing and incident review.

  • Each record sealed server-side with an HMAC bound to its workspace
  • Screen captures and live remote view where the display allows
  • Export the ledger as CSV
Proof-of-play ledger · sample Signed
  • Weekend Sale · 15 sStore 042 · Wall A17:00:04
  • Menu Loop · 30 sQSR 118 · Screen 317:00:19
  • Brand Spot · 10 sLobby · Main17:00:49

hmac-sha256 · bound to workspace · tamper-evident

▸ Provider console

Run signage as a service

Manage every customer account and workspace, their subscriptions and licences on one billing ledger, player releases and install links, and the health of every service, from one console.

  • Invoices, payments, credits and licences in one ledger
  • Release channels and install links for every player
  • Support sessions that start only after the customer approves
Service status · sample Live
  • frontendOperational
  • backendOperational
  • backend-transcoderOperational
  • llm-serviceOperational
  • aiOperational
  • postgresOperational

▸ Built for every screen

From drive-thru menus to departure boards, and every screen in between.

  • QSR & Menu Boards
  • Retail & Fashion
  • Transit & Wayfinding
  • Hospitality
  • Fitness & Gyms
  • Events & Venues
  • Brand Campaigns

▸ How it runs

Pair, publish and check playback.

  1. Pair a screen

    Install the player on a TV, box or computer and claim it with a code. It joins your fleet with its site, group and orientation already set.

  2. Design & schedule

    Build a campaign in the editor or start from a template, then schedule it in each site’s local time and push it to exactly the screens you choose.

  3. Check playback

    Review live status, alerts, available captures and tamper-evident playback records. Check each physical screen before accepting the installation.

▸ Pricing

Choose a plan for the screens you run.

Review current licence terms and feature availability, with enterprise or reseller arrangements for larger fleets.

  • Plan your first screen

    Create a workspace, check TV compatibility and confirm the licence terms for your first screen.

  • Screen-based plans

    Compare current terms for the number of screens and features you need.

  • Plan changes

    Review plan-change and cancellation terms before changing your subscription.

  • Enterprise & resellers

    Ask about terms for larger fleets and managing customer workspaces.

▸ Where it runs

Our cloud, or your own servers.

The same platform either way: the same console, the same players, the same proof of play.

  • Cloud (SaaS)

    We host the platform and manage updates. Install the app on a compatible TV, pair it and verify playback. Setup time varies by TV, firmware and network.

    • Server hosting and maintenance handled for you
    • Screens connect over the internet
    • Automatic updates and backups

  • On-premises

    The same platform on your own servers or private cloud, for estates that keep content and playback records inside their own network.

    • Your servers, your network, your data
    • Verified cached media and persisted schedules support playback during outages; connected services still need a network
    • Updates on your schedule, with our support

Ready to light up
every screen you run?

Pair your first screen with a claim code, build your first campaign and watch it play, then bring the rest of your fleet.